Ask HN: What simple tools or products made you loads of money?

A text editor is the single simplest tool that has been responsible for me earning more money than anything else I have tried.

I want a simple tool that tells me exactly what I have to be doing right now. It knows whats best for me. Then I can focus on doing it.<p>I think this is technologically almost impossible to build right though... probably would involve some degree of general intelligence.

Learning how to negotiate.

The two skills that have been the key to my career are writing and Excel.

Ticker: VOO<p>Vanguard&#x27;s S&amp;P 500 fund. Buy as much as you possibly can and never sell it.